JLG 2658E3 ANSI Operator Manual - Manual (Page 61)

SECTION 5 - EMERGENCY PROCEDURES
3120761 – JLG Sizzor – 5-1
SECTION 5. EMERGENCY PROCEDURES
5.1 GENERAL
This section provides information on the procedures to be
followed and on the systems and controls to be used in
the event an emergency situation is encountered during
machine operation. Prior to operation of the machine and
periodically thereafter, the entire operating manual, includ-
ing this section, should be reviewed by all personnel
whose responsibilities include any work or contact with
the machine.
5.2 EMERGENCY TOWING PROCEDURES
Although towing the machine is prohibited, provisions for
moving the machine, in case of a malfunction, power fail-
ure, or for loading on a truck, have been incorporated.
The following procedures are to be used ONLY for emer-
gency movement to a suitable maintenance area or to
load the machine on a truck. These procedures are also
found on a decal affixed to the left front bumper of the
machine.
1. Chock the wheels securely.
2. Turn the black-handled valve knob on the main con-
trol valve counterclockwise all the way out to disen-
gage the drive motors.
3. Using a 3/4 inch wrench, release the parking brake
by moving the brake cams to the horizontal position.
4. Using suitable equipment for assistance, remove the
chocks, and move the machine to an appropriate
maintenance area or onto the truck.
After moving the machine, complete the following proce-
dures:
1. Position the machine on a firm, level surface.
2. Chock the wheels securely.
3. Using a 3/4 inch wrench, engage the parking brake
by moving the brake cams to the vertical position.
4. Turn the black-handled valve knob on the main con-
trol valve clockwise all the way in to engage the
drive motors.
5. Remove the chocks from the wheels.
5.3 EMERGENCY CONTROLS AND THEIR
LOCATIONS
Emergency Stop Switch
These large red buttons, one located at the Ground Con-
trol Station and one at the Platform Control Station, will
immediately stop the machine when depressed.
CHECK MACHINE DAILY TO MAKE SURE EMERGENCY STOP
BUTTON IS IN PLACE AND THAT GROUND CONTROL INSTRUC-
TIONS ARE IN PLACE AND LEGIBLE.
Power Selector Switch
The key-operated Power Select switch, located at the
Ground Control Station, can also be used to shut down
the machine in an emergency situation. To shut off
machine power, turn the Power Select switch to the center
off (O) position.
Ground Control Station
The Ground Control Station is located on the left side of
the machine frame. The controls on this panel provide the
means for overriding the platform controls and for control-
ling the platform lift up and down functions from the
ground. Place the power select switch in the ground posi-
tion and operate the lift switch to lift up or down.
Manual Descent
The manual descent valve is used, in the event of total
power failure, to lower the platform using gravity. The
manual descent handle is located on the left front side of
the machine frame, just behind the left front wheel. The
handle is connected, by a stainless steel cable, to the
manual descent valve on the lift cylinder. Pulling the man-
ual descent handle opens the valve spool, lowering the
platform.